assume cs:codesg

stack segment
	db 16 dup(0)
stack ends

codesg segment
	mov ax, 4c00h
	int 21h
start:
	mov ax,stack
	mov ss,ax
	mov sp,16
	mov ax,0
	
	push cs	
	push ax

	mov bx,0
	retf
codesg ends

end start
